agfa g74 recipe?

[gzinsel]

hello everybody!

Does anyone have the recipe for Agfa G74 film developer for us scratchers. thank you. greg z

 

[Charles Thomas]

Bump

 

[Rick A]

I have formulas : negative dev 8, fine grain 14, tropical fine grain 16, high contrast 40 for film. Normal contrast paper 100, soft dev for low contrast paper 105, high contrast paper 108. Brown tone paper dev 120, and 123 brown tone developer for portrait paper. Are you sure that isn't a typo and you need D-74?

 

[Rudeofus]

I have not been able to find a formula, are you sure it is public? MSDS suggests it is a very active PQ developer which uses Borax/Metaborate buffer system as alkali to reach its operating pH of 10.5. It also contains oddball chems like 2-Methylaminoethanol and Polyglycol. IIRC it was used in a special processor which could reliably achieve the very short dev times below one minute.

Are you looking for this exact formula for historic reasons, or would you settle for an alternative if the formula happens to be a trade secret ?

 

[JW PHOTO]

Is this the developer you are talking about?

Product description
G74c continuous tone developer, G74s starter and AD74 additive: this chemistry is used for developing b/w continuous tone aerial images in roller transport processors. The additive is added to further increase the activity of the developer, when the ultra-rapid development of aerial images or a higher films speed is required, whereas a standard image contrast is targeted.
Technical datasheet pdf (165 KB)

 

[Chris Livsey]

I have a reference that gives:

G74S (starter) Acetic Acid, potassium Bromide
G74C Hydroquinone, Methylaminoethanol

The latter added for resistance to aerial oxidation in high temperature (30C) continuous processing transport machines.
Not this film but noted: http://www.google.com/patents/EP0136582B1?cl=en

Which really tells me that unless you are looking to run such a machine from scratch a more conventional developer would be more worthwhile making up.